Finding the Fourth Proportional to 404,978.55, 607,467.47 and 124,495.35

Step by Step Solution

1. Step 1: Write the proportion equation
   404,978.55 : 607,467.47 = 124,495.35 : x
2. Step 2: Convert to fraction form
   404,978.55/607,467.47 = 124,495.35/x
3. Step 3: Cross multiply
   404,978.55x = 607,467.47 × 124,495.35
4. Step 4: Simplify right side
   404,978.55x = 75,626,874,668.79
5. Step 5: Solve for x
   x = 75,626,874,668.79/404,978.55
6. Step 6: Final answer
   x = 186,742.91